Ultrasound gives information about many features of thyroid cancer, such as whether a mass is solid, hypoechoic
, taller than it is wide, and whether it has microcalcifications and irregular margins.
periphery or compressed myometrium can be seen with a fibroid by endovaginal ultrasound, but not necessarily by transabdominal ultrasound.
The ultrasonograph revealed a focal lesion of the left lobe of the liver, which was solid, partly mixed, and contained a predominantly hyperechoic zone (10 cm in diameter, including some smaller hypoechoic
areas and beams spreading radially into the adjacent parenchyma).
Sonographic breast anatomy can be divided into 3 categories based on the echogenicity of tissues: hyperechoic structures, medium echogenic structures and hypoechoic
Nodule echogenicity (hypoechoic
, isoechoic, hyperechoic) is described relative to thyroid parenchyma with hypoechogenicity having an association with malignancy (Figure 4).
Hyperechoic masses were seen in 6 cases and hypoechoic
in 12 cases.
The mass was hypoechoic
and heterogeneous and involved three-quarters of the circumference of the esophageal lumen, involving all esophageal wall layers to the adventitia.
Meanwhile, sonographic appearances are a well-circumscribed hypoechoic
or isoechoic oval masses, with enhanced through transmission .
On axial scan of the right inguinal region, a hypoechoic
mass was incidentally discovered by low-frequency convex probe (C5-2) [Figure 1]a.
In the ultrasonography of second case, the dependent portion of bladder appeared hypoechoic
and upper part appeared anechoic.
Diagnosis of renal vein thrombosis was made due to hypoechoic
areas in the right renal vein area suggesting thrombosis at first sight.
Ultrasonography revealed a well-defined hypoechoic
mass with hyperechoic centres.